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Advanced O&M Command Reference

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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Qos show front_concur

Qos show front_concur

Function

The Qos show front_concur command is used to view information about front-end concurrency control of the current storage system.

Format

Qos show front_concur

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

View existing cache partitions and concurrency usage of each priority in the current storage system.

admin:/diagnose>Qos show front_concur 
Maximum system concur     : 1024 
Refused system concur     : 0 
Max single LUN concur     : 2048 
Frontconcur io in         : 0 
Frontconcur io back       : 0 
Current left IO in queues : 0 
Priority weight           : 0  40  0  32  25  0  0  0 
Cache partition(0) information: 
         Current max total concur                 : 1024 
         Current total concur (include waiting io): 0 
         Current left IO number in this queue     : 0 
         Current total concur (actual num)        : 46 
         priority maxConcur concurUsed        NotSatisfyCnt            AllIo LeftIo   maxUsedConcur maxWaitIONum adjustNumber defaultMaxConcur 
         ---------  --------- ---------         ---------              --------- ---------  ---------        ---------      ---------      --------- 
              0         1           0                   0                   0        0           0              0             723                 1 
              1        12           0                   0                   0        0           0              0             723               422 
              2         1           0                   0                   0        0           0              0             723                 1 
              3        13           0                   0                   0        0           0            0             723               337 
              4        16           0                   0                   0        0           0              0             723               263 
              5         1           0                   0                   0        0           0              0             723                 1 
              6         1           0                   0                   0        0           0              0             723                 1 
              7         1           0                   0                   0        0           0              0             723                 1 

System Response

The following table describes the parameter meanings.

Parameter

Meaning

maximum system concur

Maximum system concurrencies.

Refused system concur

Number of concurrencies that exceed the maximum system concurrencies and are

refused.

max single LUN concur

Maximum concurrencies of a single LUN.

Frontconcur io in

Number of I/Os received by front-end concurrencies.

Frontconcur io back

Number of returned I/Os received by frontend concurrencies.

priority weight

Weight of front-end concurrency priority.

Current max total concur

Maximum concurrencies of cache partition N.

current total concur (include waiting io)

Current concurrencies of cache partition N.

Current left IO number in all priority queues

Number of I/Os in all priority queues.

Current left IO number in this queue

Number of I/Os in this priority queue.

Current total concur (actual num)

Total number of current concurrencies.

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Updated: 2019-07-12

Document ID: EDOC1000138389

Views: 487015

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